Abstract
This study investigated the ability of principal component (PC) amplitude compression [D. K. Bustamante and L. D. Braida, J. Acoust. Soc. Am. Suppl. 1 74, S104 (1984)] to compensate for reduced dynamic range in sensorineural hearing impairments. Two types of PC compression were examined: compression of the lowest‐order PC (corresponding roughly to overall level), and compression of the two lowest‐order components (corresponding to both overall level and slope). For comparison purposes, wideband compression, independent multiband compression, and linear amplification were also tested. Subjects with moderately severe and severe sensorineural hearing losses identified CVC nonsense syllables spoken by one male and one female speaker. Training was performed at each subject's MCL, and testing was conducted at two input levels, MCL and MCL‐10 dB. A detailed discussion of the results will be presented. [Work supported by NIH.]
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